Which sentence in the paragraph conveys the main idea of the letter?
I would like to apologize for the lost package. I understand your frustration. You are absolutely right to complain about it. We value and hope to keep your business. I assure you that this is an unusual incident. Please allow me to issue you a $500 prepaid gift card to compensate for the lost order.
A.
I would like to apologize for the lost package.
B.
Please allow me to issue you a $500 prepaid gift card to compensate for the lost order.
C.
I assure you that this is an unusual incident.
D.
You are absolutely right to complain about it.